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Re: WOOD - Engineered Lumber vs. Sawn Lumber

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Mark Baker

Yes Glued Laminated Timber beams, Glulam and also know as GLB are indeed
manufactured using 2x4 's - actual width is 3-1/2 inches. Most beams are
planed to a finished width of 3-1/2 in., but can be supplied in the 3-1/2 in.
width if Industrial appearance is acceptable. In fact, you can get any width
you want, but it may cost extra if you don't specify a "standard" size.

Glulam standard sizes are as follows:

For Western Species (Douglas fir - Larch, Western Woods, Red Wood)

 2-1/2 in., 3-1/8, 3-1/2, 5-1/8, 5-1/2, 6-3/4, 8-3/4, 10-3/4 and larger.
 Contact AITC at 303-792-9559 to get a copy of AITC 117-93, Standard
forStructural Glued Laminated Timber -- Design  that documents the sizes and
much more.

Please contact me if you have any additional questions regarding Glued
Laminated timber.

Bruce Pooley, P.E. (Colorado)